Study of hyaluronan synthase inhibitor, 4-methylumbelliferone derivatives on human pancreatic cancer cell (KP1-NL).

Abstract

The structure of 4-methylumbelliferone (MU) consists of coumarin with 4-methyl group and 7-hydroxy group. MU inhibits HA synthesis and pericellular HA matrix formation. In this study, we used 10 MU derivatives which have hydroxy groups and methyl groups at various positions of coumarin to investigate a more effective HA inhibitor than MU. First, human pancreatic cancer cell (KP1-NL) growth assay was analyzed by Alamar Blue to determine the non-toxic concentration of MU derivatives, and the inhibitory effect on HA synthesis in the cell cultures was analyzed by HA measuring kit. Next, cell surfaces of cancer cells were analyzed by particle-exclusion assay. In conclusion, both hydroxy and methyl groups are necessary for HA inhibition by MU, and two hydroxy groups inhibited HA synthesis more strongly than MU.

• Authors: Hajime Morohashi, Atsushi Kon, Makoto Nakai, Masanori Yamaguchi, Ikuko Kakizaki, Shuichi Yoshihara, Mutsuo Sasaki, Keiichi Takagaki
• Journal: Biochemical and biophysical research communications (Biochem Biophys Res Commun) Vol. 345 Issue 4 Pg. 1454-9 (Jul 14 2006) ISSN: 0006-291X [Print] United States
• PMID: 16730656 (Publication Type: Journal Article)

Chemical References

• Enzyme Inhibitors
• Hymecromone
• Hyaluronic Acid
• Glucuronosyltransferase
• Hyaluronan Synthases

Topics

• Cell Line, Tumor
• Cell Proliferation (drug effects)
• Dose-Response Relationship, Drug
• Enzyme Inhibitors (chemistry, pharmacology)
• Glucuronosyltransferase (antagonists & inhibitors, metabolism)
• Humans
• Hyaluronan Synthases
• Hyaluronic Acid (biosynthesis)
• Hymecromone (analogs & derivatives, chemistry, pharmacology)
• Pancreatic Neoplasms (enzymology, pathology)
• Structure-Activity Relationship